user-avatar
Duongadd
2 năm trước
một thùng gỗ có khối lượng 30kg đang chuyển động thẳng đuề trên sàn nhà nhờ lực đẩy nằm ngang có độ lớn 1/5 trọng lượng của thùng a.tính lực ma sát trượt của thùng và sàn n
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

46.The lab is _____ from the bus stop than the library. A. far B. farther C. furthur D. B and C 47.The ______ accident in the history of the city occurred last night on the Freeway. A. badest B.most bad C. worse D. worst 48.He finished the test _______ of all. A. rapidly B. the most rapidly C. most rapidly D. more rapidly 49.Many chemicals react ______ in acid solutions. A. more quick B. more quickly C. quicklier D. as quickly more 50.It’s becoming ______ to find a job. A. more difficult and more B. more and more difficult C. most and more difficult D. more difficult than 51.______ electricity you use, _______ your bill will be. A. more / higher B. the most / the higher C. the more / the high D. the more / the higher 52.The more I got to know Tom, _______ I liked him. A. least B. the less C. the least D. the fewer 53.The room in the front ______ noisier than those in the back. A. are more B. are little C. are much D. are very 54.______ you are, ______ you concentrate. A. Tired / the least hard B. The more tired / the harder C. The tireder / the harder D. The tired / the harder 55.______ the man gets, ______ he becomes. A. the more old / the more weak B. the older / the weaker C. the older / the weakest D. older / weaker 56.Of all the candidates, Mr. Hung is probably ______. A. the less qualified B. the qualified less C. the most little qualified D. the least qualified 57._______ a car is, ______ it is. A. the expensive / the comfortabler B. the most expensive /the most comfortable C. the more expensive / the more comfortable D. the less expensive / the more comfortable 58.His house is _____ mine. A. larger and more comfortable than B. the most large and comfortable than C. more large and comfortable than D. the largest and more comfortable than 59._______ 100 billion stars are in the Milky Way. A. As many as B. As much as C. As more as D. As most as 60.The CDs here are more expensive ______ over there. A. those B. than those C. than that D. than this 61.These two girls ______ that I can’t tell them apart. A. are so like B. are so alike C. are too alike D. alike enough 62._______ other mammals, whales do not have a sense of smell. A. Not alike B. Unlike C. Unlikely D. Dislike 63.The stomach of a cow, ______ that of other ruminants, is divided into four compartments. A. likely B. similar C. same D. like 64.The larger the drop of water, ______ freezing temperature. A. the higher its B. its higher C. higher than its D. higher of its 65.Automobiles, airplanes, and buses use more energy per passenger ______ . A. trains do B. as trains C. as are trains D. than trains do 66.“would you like to try this hat?” “Have you got one ______. ” A. with a wider brim B. a wider brim C. wich a wider brim D. a wider brim than 67.A cat would be _______ ­­­­ to look after ______ a dog. A. easy / than B. easier / than C. easy / to D. the easiest / than 68.The Duke of Westminster is _______ . A. second richest person B. the richest second person C. the second richest person D. the richest the second 69.The younger you are, _______ it is to learn. A. easier B. you are easier C. the easier D. the easy 70._______ porpoises and dolphins, whales are mammals. A. As B. Also C. Like D. When

21. No one else in the class plays the guitar ______ John. A. as well B. as far as C. so well as D. as soon as 22. The town was nearer _____ we thought it would be. A. then B. that C. as D. than 23. the economic conditions today are _______ they were in the past. A. much more good B. much better than C. much better D. the best than 24.Peter is ______ student in my class. A. taller than B. so tall as C. the talllest D. tallest 25.The deep oceans contain some of the ______ of all living creatures. A. strangest B. strange C. as strange as D. stranger 26.Jane is not _____ her brother. A. more intelligent as B. intelligent as C. so intelligent as D. so intelligent that 27.He drives as ______ his father does. A. careful as B. more carefully C. the most careful D. carefully as 28.What’s the ______ film you’ve ever seen. A. good B. best C. better D. the best 29.Jane is ______ age as Mary. A. as same B. the most same C. the same D. more same 30.I’ll be there _______ I can. A. sooner as B. no sooner as C. as soon as D. soonest as 31.This shirt and that one ______. A. alike B. are alike C. as like as D. the same 32.I would rather do any job ______ be jobless. A. beeter than B. more than C. than D. so than 33.It is not so hot today as it ______ yesterday. A. is B. was C. will be D. has been 34.Mr. Lam cannot earn _______ his wife. A. as many money as B. as much money as C. as many money than D. as much money than 35.I like Enlish ______ French. A. than B. more C. less D. better than 36.The salary of a bus driver is much higher _______ a teacher. A. as that of B. than that of C. for D. to compare with 37.Lili cannot swim as fast as ______ can. A. I B. me C. my D. mine 38.My car is _______ yours. A. more fast and economical than B. more fast and more economical than C. faster and economical as D. faster and more economical than 39.I want to buy some shoes _______ the ones you have on. A. like B. are like C. are alike D. likely 40.Mary and her mother do not _______. A. alike B. look like C. look alike D. like 41.Despite its smaller size, the Indian Ocean _______ the Alantic Ocean. A. as deep as B. is the same deep as C. deeper as D. is as deep as 42.Sharon ______ from other women I know. A. different B. as different C. differs D. more different 43.This one is prettier, but it costs _____ as the other one. A. as much as B. twice as much C. as many D. twice as many 44.You can take ______ as you want. A. as many B. as much C. so much D. too many 45.Of the two sisters, Linda _______ . A. is beautiful B. the most beautiful C. is more beautiful D. is so beautiful as

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team